Autopsy: Singer Davy Jones died of heart attack

March 1, 2012 6:56:18 PM PST

WEST PALM BEACH, Fla. --

An autopsy confirms that Davy Jones, star of 1960s band The Monkees, died of a heart attack.

The medical examiner's office in Martin County, Fla., says authorities completed their examination Thursday morning, a day after Jones was rushed to the hospital. Toxicology tests could take another six or eight weeks, but there's no sign anything else is to blame for the 66-year-old heartthrob's death.

Jones rocketed to stardom in the 1960s as a member of The Monkees, a made-for-TV rock band patterned after the Beatles. Though their televisioin show lasted just two years and the group ultimately broke up, they have endured with such chart-topping hits as "I'm a Believer" and "Daydream Believer."

A spokeswoman for Jones says funeral arrangements have not yet been made.